While bark beetles have been slowly infesting trees in Aspen, winter won’t offer any respite. Aspen is currently home to the Douglas-fir beetle, the spruce beetle, the mountain pine beetle, Ips ...
In southern Oregon they call it the "fir-mageddon." That's where we first began to notice the rapid decline of our largest and most prolific tree in the Pacific Northwest. The Douglas fir is not only ...
Douglas fir dieback is spreading from southwest Oregon into the Willamette Valley. Long-term drought has led to swaths of weakened trees increasingly killed off by insects and disease. The flathead ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results